These VA Tech scientists are building a better fog harp

The arid coastal regions, which are also prone to fogs, are the main places for fog harvesting devices as a water source, especially during long -term droughts. However, the standard technology tends to clog. Scientists at Virginia Tech have created an improved version of previous “fog war” alternative designs to address this problem. new article Materials Magazine Chemistry A.

Fog harvest (or raw capture) is an old application that extends to the incasis that placed buckets under the trees to collect condensation. In addition, certain insects that survive on water concentrating on their wings are applied especially by honor desert insects. The wings have alternative hydrophilic and hydrophobic areas to increase the condensation. Today’s fog harvesters are usually mounted on frames with a groove or basin at the bottom. Like the wings of the insect, network filaments are chemically covered with hydrophobic or hydrophilicism.

The efficiency of these water -harvesters depends on reducing the size of filaments and network holes. “If the holes were too big, microscopic droplets would have passed and would not harvest too much water,” He said. The change is that smaller filaments and holes are more prone to clogging. “If it were too small, a water film would unite and create on the droplets.” He said. He continued: “This would prevent the flow and a barrier that would significantly affect the capture efficiency.”

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